Home / 76,420.81-114,465.30-46,748.62

Finding the Fourth Proportional to 76,420.81, 114,465.30 and 46,748.62

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Solution

The fourth proportional to 76,420.81, 114,465.30 and 46,748.62 is: 70,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,420.81 : 114,465.30 = 46,748.62 : x
  2. Step 2: Convert to fraction form
    76,420.81/114,465.30 = 46,748.62/x
  3. Step 3: Cross multiply
    76,420.81x = 114,465.30 × 46,748.62
  4. Step 4: Simplify right side
    76,420.81x = 5,351,094,812.89
  5. Step 5: Solve for x
    x = 5,351,094,812.89/76,420.81
  6. Step 6: Final answer
    x = 70,021.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.